Binding-post for electric conductors



(No Model.)

A. G. GOODBODY.

BINDING POST FOR ELECTRIC GONDUGTORS.

No. 296,160. Patented Apr. 1,1884."

INVENTOR 1 ATTORNEYS;

- WITNESSES-z N. PEIERS, Pigmiimognpher. wumn im Dc.

UNITED STATES.

ALBERT GEORGE GOODBODY,

OF LOUISVILLE, KENTUCKY.

BINDING-POST FOR ELECTRIC CONDUCTORS.

' SPECIFICATION forming part of Letters Patent No. 296,160, dated April1, 1884.

Application filed November 30, 1883. (No model.)

To all whom it may concern:

Be it known that I, ALBERT GEORGE Goon- BODY, of Louisville, in thecounty of J efferson and State of Kentucky, have invented a new andImproved Binding-Post for Electric Conductors, of which the following isafull, clear, and exact description.

My invention relates to improvements in binding-posts for connectingelectric conductors; and it consists in the peculiar construction andarrangement of the parts, as hereinafter more fully set forth, andpointed out in the clai ms.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a longitudinal sectional elevation of my improvedbinding-post on the line a? .r, Fig. 2. Fig. 2 is a cross-sectionalelevation of the same on the line 3 y, Fig. 1. Fig. 3 is a sectionalplan view of the same on the line 5 z, Fig. 2.

A standard, A, is secured on a base, B, by a screw, 0, screwed throughthe base into the lower end of the standard, with which screw theconducting wire or strip isconnected. The standardA is provided atitsupper end with an annular flange, a, or a crosspiece, and on thestandard a cap, D, is held loosely, which cap is pressed upward by aspiral spring, E, surrounding the standard A, and acting on an annularflange, d, or a cross-piece formed on the lower end of the cap. in theupper end of the cap D a button or head, F, of insulating material isscrewed or otherwise fastened. The standard A is provided with alongitudinal groove, G, into which the inner end of a pin, H, passes,which is held in the flange (Z of the cap, and holds the cap fromturning. The standard A is provided at its upper end with an aperture,J, and the cap D is provided with two opposite apertnres, K, which canbe brought in line wit-h the aperture J. The flange a prevents thespring E from pressing the cap D upward too far, as the inner edge ofthe bottom flange, d, of the cap D rests closely against the standard A,and strikes against the bottom edge of the flange a when the cap D israised as far as possible. If the pin L, se-

cured to the conductor, is to be held in the binding-post, the cap D isdepressed until the apertures J and K are in line, and then the pin L onthe end of the wire is passed through the said apertures and thepressure on the head is removed. The spring E presses the cap D upward,and the bottom edges of signed and adapted for use in medical batteries,for therapeutic batteries, and also for ordinary electrical purposes.The insulated top enables the physician or electrician to change thecurrent with greater facility ,while treating the patient, and withoutin any way diverting the current from the patient.

I am aware that a binding'post for elec trical instruments, consistingof a chambered post and a headed spring-pressed interior plug having itsmotion limited by a pin passing through a groove made in the chamberedpost and plug, has heretofore been employed; and I am also aware that abinding post capped at its upper end, provided with a hole for thepassage of a wire near its upper end, and a spring-pressed collar forbinding the wire, is old, and I therefore lay no claim to suchinventions.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. The combination, with the binding-post A,provided with the peripheral longitudinal groove G, of thespring-pressed cap D, pr0- vided with the perforated flange d, and pinH, passing through the perforation in the flange, and having its endresting'in the groove G, to prevent the cap from turning, substantiallyas shown and described.

2. The combination, with the base 13, screw 0, binding-post A, providedwith the peripheral longitudinal groove G, aperture J, and top annularflange, a, of the loose cap D, having the perforated bottom flange, cl,apertures K, insulated button F, pin H, spring E, and pin L,substantially as shown and described.

-ALBERT GEORGE GOODBODY.

Witnesses:

W. H. CLARKE, D. N. PARKHILL.

